Primary Citation of Related Structures: 3CSM, 4CSM, 5CSM
PubMed Abstract:
Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition state analogue inhibitor, previously determined for Bacillus subtilis and Escherichia coli CM, provide structural insight into the enzyme mechanism ...
Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition state analogue inhibitor, previously determined for Bacillus subtilis and Escherichia coli CM, provide structural insight into the enzyme mechanism. In contrast to these bacterial CMs, yeast CM is allosterically regulated in two ways: activation by tryptophan and inhibition by tyrosine. Yeast CM exists in two allosteric states, R (active) and t (inactive).
Related Citations:
Crystal Structure of the T State of Allosteric Yeast Chorismate Mutase and Comparison with the R State Strater, N., Hakansson, K., Schnappauf, G., Braus, G., Lipscomb, W.N. (1996) Proc Natl Acad Sci U S A 93: 3330
Location of the Active Site of Allosteric Chorismate Mutase from Saccharomyces Cerevisiae, and Comments on the Catalytic and Regulatory Mechanisms Xue, Y., Lipscomb, W.N. (1995) Proc Natl Acad Sci U S A 92: 10595
The Crystal Structure of Allosteric Chorismate Mutase at 2.2-A Resolution Xue, Y., Lipscomb, W.N., Graf, R., Schnappauf, G., Braus, G. (1994) Proc Natl Acad Sci U S A 91: 10814
Organizational Affiliation:
Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.
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